The Experts below are selected from a list of 89391 Experts worldwide ranked by ideXlab platform
Xuefei Shao - One of the best experts on this subject based on the ideXlab platform.
-
failure mechanisms in carbon fiber reinforced plastics cfrp Aluminum Al adhesive bonds subjected to low velocity transverse pre impact following by axiAl post tension
Composites Part B-engineering, 2019Co-Authors: Xuefei Shao, Qing LiAbstract:Abstract The present study aimed to explore the effects of impact surface and impact energy on the residuAl characteristics of the carbon fiber reinforced plastics (CFRP)/Aluminum (Al) adhesive bonded joints. The adhesive specimens were manufactured in the hot pressing machine with specific curing temperature and curing pressure of the adhesive. In the experiments, a transverse low velocity pre-impact was carried out first and then followed by the axiAl (longitudinAl) tensile test. The results divulged that CFRP, as an impact surface, could generate better structurAl integrity and decrease loss of joint strength in comparison with the Aluminum impact surface. The mechanism for Alternating residuAl tensile strength resulting from transverse impact load was the combined effect of both damage and mechanicAl interlocking effectiveness. The residuAl tensile strength and failure displacement decreased with increasing impact energy except for the joint strength impacted onto the Aluminum surface at 10 J due to the prominent mechanicAl interlocking effect. The strain evolution paths in the adherends at the overlap region presented the different forms when impacted onto the different surfaces. In the tensile tests, the fracture surfaces for the joints with impacting on the Aluminum surface can be classified as shear failure zone, annular failure zone and mixed failure zone, while the fracture surfaces for the joints with impacting onto the CFRP surface classified to be shear failure zone and crossed impact zone. This study is expected to provide systematic understanding on crashing behavior of adhesive joints with dissimilar materiAls for multiple impacts from different directions.
-
Failure mechanisms in carbon fiber reinforced plastics (CFRP) / Aluminum (Al) adhesive bonds subjected to low-velocity transverse pre-impact following by axiAl post-tension
Composites Part B: Engineering, 2019Co-Authors: Xinglong Liu, Xuefei Shao, Guangyong SunAbstract:Abstract The present study aimed to explore the effects of impact surface and impact energy on the residuAl characteristics of the carbon fiber reinforced plastics (CFRP)/Aluminum (Al) adhesive bonded joints. The adhesive specimens were manufactured in the hot pressing machine with specific curing temperature and curing pressure of the adhesive. In the experiments, a transverse low velocity pre-impact was carried out first and then followed by the axiAl (longitudinAl) tensile test. The results divulged that CFRP, as an impact surface, could generate better structurAl integrity and decrease loss of joint strength in comparison with the Aluminum impact surface. The mechanism for Alternating residuAl tensile strength resulting from transverse impact load was the combined effect of both damage and mechanicAl interlocking effectiveness. The residuAl tensile strength and failure displacement decreased with increasing impact energy except for the joint strength impacted onto the Aluminum surface at 10 J due to the prominent mechanicAl interlocking effect. The strain evolution paths in the adherends at the overlap region presented the different forms when impacted onto the different surfaces. In the tensile tests, the fracture surfaces for the joints with impacting on the Aluminum surface can be classified as shear failure zone, annular failure zone and mixed failure zone, while the fracture surfaces for the joints with impacting onto the CFRP surface classified to be shear failure zone and crossed impact zone. This study is expected to provide systematic understanding on crashing behavior of adhesive joints with dissimilar materiAls for multiple impacts from different directions.
Guangyong Sun - One of the best experts on this subject based on the ideXlab platform.
-
Failure mechanisms in carbon fiber reinforced plastics (CFRP) / Aluminum (Al) adhesive bonds subjected to low-velocity transverse pre-impact following by axiAl post-tension
Composites Part B: Engineering, 2019Co-Authors: Xinglong Liu, Xuefei Shao, Guangyong SunAbstract:Abstract The present study aimed to explore the effects of impact surface and impact energy on the residuAl characteristics of the carbon fiber reinforced plastics (CFRP)/Aluminum (Al) adhesive bonded joints. The adhesive specimens were manufactured in the hot pressing machine with specific curing temperature and curing pressure of the adhesive. In the experiments, a transverse low velocity pre-impact was carried out first and then followed by the axiAl (longitudinAl) tensile test. The results divulged that CFRP, as an impact surface, could generate better structurAl integrity and decrease loss of joint strength in comparison with the Aluminum impact surface. The mechanism for Alternating residuAl tensile strength resulting from transverse impact load was the combined effect of both damage and mechanicAl interlocking effectiveness. The residuAl tensile strength and failure displacement decreased with increasing impact energy except for the joint strength impacted onto the Aluminum surface at 10 J due to the prominent mechanicAl interlocking effect. The strain evolution paths in the adherends at the overlap region presented the different forms when impacted onto the different surfaces. In the tensile tests, the fracture surfaces for the joints with impacting on the Aluminum surface can be classified as shear failure zone, annular failure zone and mixed failure zone, while the fracture surfaces for the joints with impacting onto the CFRP surface classified to be shear failure zone and crossed impact zone. This study is expected to provide systematic understanding on crashing behavior of adhesive joints with dissimilar materiAls for multiple impacts from different directions.
Qing Li - One of the best experts on this subject based on the ideXlab platform.
-
failure mechanisms in carbon fiber reinforced plastics cfrp Aluminum Al adhesive bonds subjected to low velocity transverse pre impact following by axiAl post tension
Composites Part B-engineering, 2019Co-Authors: Xuefei Shao, Qing LiAbstract:Abstract The present study aimed to explore the effects of impact surface and impact energy on the residuAl characteristics of the carbon fiber reinforced plastics (CFRP)/Aluminum (Al) adhesive bonded joints. The adhesive specimens were manufactured in the hot pressing machine with specific curing temperature and curing pressure of the adhesive. In the experiments, a transverse low velocity pre-impact was carried out first and then followed by the axiAl (longitudinAl) tensile test. The results divulged that CFRP, as an impact surface, could generate better structurAl integrity and decrease loss of joint strength in comparison with the Aluminum impact surface. The mechanism for Alternating residuAl tensile strength resulting from transverse impact load was the combined effect of both damage and mechanicAl interlocking effectiveness. The residuAl tensile strength and failure displacement decreased with increasing impact energy except for the joint strength impacted onto the Aluminum surface at 10 J due to the prominent mechanicAl interlocking effect. The strain evolution paths in the adherends at the overlap region presented the different forms when impacted onto the different surfaces. In the tensile tests, the fracture surfaces for the joints with impacting on the Aluminum surface can be classified as shear failure zone, annular failure zone and mixed failure zone, while the fracture surfaces for the joints with impacting onto the CFRP surface classified to be shear failure zone and crossed impact zone. This study is expected to provide systematic understanding on crashing behavior of adhesive joints with dissimilar materiAls for multiple impacts from different directions.
Gregory J. Taylor - One of the best experts on this subject based on the ideXlab platform.
-
A comparison of the kinetics of Aluminum (Al) uptake and distribution in roots of wheat (Triticum aestivum) using different Aluminum sources. A revision of the operationAl definition of symplastic Al
Physiologia Plantarum, 1996Co-Authors: Daniel J. Archambault, Guichang Zhang, Gregory J. TaylorAbstract:The lack of information about the movement of Aluminum (Al) across the plasma membrane presents a significant barrier to the elucidation of resistance mechanisms which may involve exclusion of Al from the symplast. An understanding of mechanistic aspects of exclusion requires the estimation of symplastic Al levels. Such measurements may be achievable through the use of a kinetic approach. A kinetic protocol was developed to characterize the accumulation and distribution of Al in various cellular compartments in roots of wheat (Triticum aestivum L.). The kinetics of uptake and desorption were similar when Al was supplied as AIK(SO 4 ) 2 or as AlCl 3 . When both sAlts were supplied at low concentration (50 μM), Al bound to a purified cell wAll fraction could be reduced to less than 10-20% of non-exchangeable Al, if roots were washed for 30 min in citric acid following exposure. In contrast, when A1K(SO 4 ) 2 was supplied at a high concentration (200 μM), a strong linear phase of uptake into cell wAll materiAl was observed, which accounted for approximately 48% of non-exchangeable Al in roots. These results suggest that the use of low concentrations of Al in simple sAlt solutions is required to minimize accumulation of non-exchangeable Al in the apoplasm. A series of multiple-desorption experiments confirmed that citric acid was effective in removing Al from the cell wAll compartment of roots exposed to Al for short periods (3 h). However, long exposures (48 h) appeared to create conditions conducive to the accumulation of non-exchangeable Al in the cell wAll. In experiments where uptake from solutions containing 50 μM AlCl 3 was followed by desorption in citric acid, non-exchangeable Al in microsomAl membrane fractions represented less than 4% of totAl non-exchangeable Al. Thus, we can exclude the plasma membrane and cell wAll as major sites for accumulation of non-exchangeable Al in short exposure studies. Although we cannot provide unequivocAl evidence for the locAlization of Al within the symplast, use of simple sAlt solutions followed by desorption in citric acid provides the best kinetic technique currently available for the quantitation of Al in the symplasm.
Xinglong Liu - One of the best experts on this subject based on the ideXlab platform.
-
Failure mechanisms in carbon fiber reinforced plastics (CFRP) / Aluminum (Al) adhesive bonds subjected to low-velocity transverse pre-impact following by axiAl post-tension
Composites Part B: Engineering, 2019Co-Authors: Xinglong Liu, Xuefei Shao, Guangyong SunAbstract:Abstract The present study aimed to explore the effects of impact surface and impact energy on the residuAl characteristics of the carbon fiber reinforced plastics (CFRP)/Aluminum (Al) adhesive bonded joints. The adhesive specimens were manufactured in the hot pressing machine with specific curing temperature and curing pressure of the adhesive. In the experiments, a transverse low velocity pre-impact was carried out first and then followed by the axiAl (longitudinAl) tensile test. The results divulged that CFRP, as an impact surface, could generate better structurAl integrity and decrease loss of joint strength in comparison with the Aluminum impact surface. The mechanism for Alternating residuAl tensile strength resulting from transverse impact load was the combined effect of both damage and mechanicAl interlocking effectiveness. The residuAl tensile strength and failure displacement decreased with increasing impact energy except for the joint strength impacted onto the Aluminum surface at 10 J due to the prominent mechanicAl interlocking effect. The strain evolution paths in the adherends at the overlap region presented the different forms when impacted onto the different surfaces. In the tensile tests, the fracture surfaces for the joints with impacting on the Aluminum surface can be classified as shear failure zone, annular failure zone and mixed failure zone, while the fracture surfaces for the joints with impacting onto the CFRP surface classified to be shear failure zone and crossed impact zone. This study is expected to provide systematic understanding on crashing behavior of adhesive joints with dissimilar materiAls for multiple impacts from different directions.