The Experts below are selected from a list of 1555923 Experts worldwide ranked by ideXlab platform
Uslu Mine - One of the best experts on this subject based on the ideXlab platform.
-
Investigation of parameters which effect the bonding and strenght on adhesively bonded tongue and groove Joint of thick composite sandwich
Pamukkale Üniversitesi Fen Bilimleri Enstitüsü, 2010Co-Authors: Uslu MineAbstract:Yapışkanla bağlanmış bağlantıların dayanımı, malzeme, öngerilme, yapıştırma kalınlığı ve yapıştırma boyu gibi birçok faktör etkiler. Tüm bu faktörlerin bağlantı dayanımına etkisi araştırılmalıdır. Bu çalışmada malzeme, ön gerilme, yapıştırma kalınlığı ve dil uzunluğunun bağlantı dayanımına etkileri incelenmiştir. Basit ve etkin tasarımlarla kalın kompozit tabaka malzemenin bağlantı dayanımının arttırılması sağlanabilir. İncelenen bağlantı camelyaf/vinil ester tabakalardan meydana gelmiştir ve dil oluk geometrisini içerir. Yapılan sonlu elemanlar analizlerinin sonuçları, ön gerilme uygulanan bağlantılarda yapıştırılan kenarlarda yoğun bir kayma ve açılma gerilmesi oluştuğunu göstermektedir ve bu, bağlantı dayanımının artmasına öncülük eder. Dil uzunluğu, ön gerilme, yapıştırma kalınlığı ve çelik, kompozit, alüminyum gibi farklı dil malzemesi kullanılması yapışma dayanımına etki eder. Sonlu elemanlar analiz sonuçları, yanal ön gerilme uygulanması ile bağlantı dayanımında büyük artışlara işaret eder. Uygun tasarım parametreleri seçilerek bağlantı dayanımı önemli bir biçimde arttırılabilir.The bonding strength of adhesives is influenced by many factors such as, the length of bond line, bonding thickness, pre-stress on near the free edges of bond line and material of the joining parts, etc. Since all these factors affect the strength of the adhesively joined parts, the effects of these parameters need to be investigated. In this paper the Joint the behavior caused by the material, prestress, bonding thickness and the tongue length is investigated. A simple but effective design can considerably improve the Joint strength of thick adhesive composite Joints. The Joint under investigation consists of thick woven Eglass/ vinyl ester laminates joined together with tongue and groove geometry. Finite element analysis further confirms that longitudinal tensile loads were applied to the Joints, resulting in large concentrated shear and peel stresses near the free edges of bondlines. The bonding clearances, tongue length, pre-stress and using different tongue made of steel/aluminum, composite have an effect on the Joint strength. Finite element analysis further confirms that Joint strength increases significantly by applying the transverse pre-stress. The Joint strength can be significantly improved by selecting appropriate the design parameter values
Cemal Meran - One of the best experts on this subject based on the ideXlab platform.
-
fatigue strength estimation of adhesively bonded tongue and groove Joint of thick woven composite sandwich structures using genetic algorithm approach
International Journal of Adhesion and Adhesives, 2010Co-Authors: Olcay Ersel Canyurt, Cemal MeranAbstract:Abstract The bonding strength of adhesive Joints is influenced by many factors such as, the overlap, the bondline thickness, the pre-stress near the free edges of bondline, the material of the joining parts, etc. Since all these factors affect the strength of the adhesively joined parts, the effects of these parameters need to be investigated. The present paper describes the use of a stochastic search process that is the basis of genetic algorithm (GA), in developing tensile strength estimation of adhesively bonded thick woven E-glass/vinyl ester laminates. Non-linear estimation models were developed using GA. The developed models were validated with experimental data. A genetic algorithm tensile strength estimation model (GATSEM) was developed to estimate the strength of adhesively bonded tongue and groove Joints. Steel S235JR insert materials and aluminum 5083 insert materials increased the Joint strength by 1.7 and 1.2 times, respectively, compared to composite insert materials. There is a 2.0 times increment in the Joint strength by applying a pre-stress at the edge of the tongue and groove geometry. The Joint strength can be significantly improved by selecting appropriate design parameter values.
George J. Dvorak - One of the best experts on this subject based on the ideXlab platform.
-
Analysis of tongue and groove Joints for thick laminatesq
2003Co-Authors: George J. DvorakAbstract:A finite element evaluation of local stresses in the adhesive and adherends is presented for a Tongue-and-Groove Joint of a homogenized thick composite laminate to steel plate. The quasi-isotropic laminate is made of glass fabric/vinyl ester plies. Most results are obtained for elastic response of the Dexter-Hysol 9338 adhesive that was used in recent experiments (Compos Sci Technol 61 (2001) 1123–1142). A non-linearly viscoelastic adhesive is also considered, with illustrative properties taken from experiments on the FM-73 system. Both in-plane force resultants and out-of-plane moments are included in the applied loads. Scaling of the elastic results with regard to plate thickness shows that for given levels of overall stresses applied to the adherend plates, the stresses supported by the adhesive do not depend on plate thickness. Adhesive stress relaxation is shown to be relatively small, and occurring in a short time period
Olcay Ersel Canyurt - One of the best experts on this subject based on the ideXlab platform.
-
fatigue strength estimation of adhesively bonded tongue and groove Joint of thick woven composite sandwich structures using genetic algorithm approach
International Journal of Adhesion and Adhesives, 2010Co-Authors: Olcay Ersel Canyurt, Cemal MeranAbstract:Abstract The bonding strength of adhesive Joints is influenced by many factors such as, the overlap, the bondline thickness, the pre-stress near the free edges of bondline, the material of the joining parts, etc. Since all these factors affect the strength of the adhesively joined parts, the effects of these parameters need to be investigated. The present paper describes the use of a stochastic search process that is the basis of genetic algorithm (GA), in developing tensile strength estimation of adhesively bonded thick woven E-glass/vinyl ester laminates. Non-linear estimation models were developed using GA. The developed models were validated with experimental data. A genetic algorithm tensile strength estimation model (GATSEM) was developed to estimate the strength of adhesively bonded tongue and groove Joints. Steel S235JR insert materials and aluminum 5083 insert materials increased the Joint strength by 1.7 and 1.2 times, respectively, compared to composite insert materials. There is a 2.0 times increment in the Joint strength by applying a pre-stress at the edge of the tongue and groove geometry. The Joint strength can be significantly improved by selecting appropriate design parameter values.
Gregory J Thill - One of the best experts on this subject based on the ideXlab platform.
-
flexible room dividers
2010Co-Authors: Charles J Ashelin, Matt Fleckenstein, David J Hoffmann, Gregory J ThillAbstract:Example room dividers are described herein. The example room dividers include a flexible curtain with features pertaining to security, impactability, insulation, sound absorption, configurability, and/or flame resistance. In some examples, the curtain comprises an inorganic carbon fiber pad sandwiched between two sheets of fiberglass fabric coated with silicone rubber. A Tongue-and-Groove Joint, in some examples, enables the interconnection of a series of curtains to create room dividers of various lengths. In some examples, the curtain comprises a full-width wire mesh sandwiched between two sheets of vinyl coated polyester fabric, wherein a touch-and-hold fastener at the outer perimeter of the curtain and overlapping the wire mesh holds the two sheets together and holds the wire mesh in place. In some examples, the flexibility of the curtain allows the curtain to respond to impacts and/or air pressure differentials.