【摘 要】
：
The purposes of the present paper are to analyze the stress wave propagation and stress state in band scarf adhesive joints of similar and dissimilar adherends under impact tensile loadings using the
【机 构】
：
Center for Collaborative Research and Community Cooperation,Hiroshima University 1-3-2 Kagamiyama,Hi
【出 处】
：
2013北京国际粘接技术研讨会暨第五届亚洲粘接技术研讨会
论文部分内容阅读
The purposes of the present paper are to analyze the stress wave propagation and stress state in band scarf adhesive joints of similar and dissimilar adherends under impact tensile loadings using the 3-D finite element method (FEM) calculations.The effects of thescarf angle,Youngs modulus ratio between thedissimilar adherends, adhesive Youngs modulus,adhesive thickness and the number of boned interface parts on the interface stressdistributions and stress wave propagations are examined using the 3-D FEM calculations and compared with those understatic tensile loadings and with the whole bonded scarf joints.For verification of the 3-D FEM calculations,the strains in the joints are measured.Furthermore,the joint strengths are predicted using elasto-plastic 3-D FEM calculationsand the predicted resultsare then compared with the measured joint strengths.
其他文献
研究了马钢12种铁矿粉的同化性、液相流动性、粘结相自身强度和铁酸钙生成特性等高温烧结特性.根据铁矿粉高温特性互补原理设计了三种优化配矿方案并进行了烧结杯实验,三种实验方案精矿粉的使用量由基准的7％提高到15％左右,其中低品位高硅OR-7矿占到5％,获得了与基准相当或略优的质量指标与经济指标,验证了基于铁矿粉高温特性的烧结优化配矿方法的可行性与优越性,为马钢更加科学合理地利用现有铁矿粉资源,最大限度
本文首先介绍了链篦式烘干机的工作原理、用途、技术性能、结构特征等，然后介绍了QG32.2×24型链篦式烘于机在莱钢20万吨转底炉生产中的应用及常见故障的分析及相应的处理方法.
本文介绍了低表面能材料和表面的粘接解决方案.关于低表面能材料和表面和为什么低表面能材料和表面难于进行粘接的细节被进行了探讨.最后介绍了针对这个主题的解决方案,3M独特的针对低表面能材料和表面的粘接的结构胶,转移胶膜和VHB被重点进行介绍.
复合材料整体化成型技术正广泛应用于航空航天领域,其中热压罐共胶接工艺已成为航空航天结构件整体化成型主要技术,胶黏剂作为预浸料和预固化板之间的胶接材料起到至关重要的作用.本文以双马树脂为主体树脂,以环氧树脂和酚酞基聚芳醚砜热熔形成的高分子合金为增韧剂兼成膜剂,以4,4-二氨技二苯砜(DDS)为双马树脂的扩链剂兼环氧树脂的固化剂,采用机械共混、热压延技术制备了一种改性双马树脂结构胶膜.该胶黏剂兼具耐温
Introduction The purposes of the present paper are to analyze the stress distributions in scarf adhesive joints of similar adherendsunder static bending moments using the 2-D and the 3-D finite elemen
Introduction The objective of the present study is to analyze and clarify the differences in the interface stress distributions between2-D and 3-D FEM when tensile loadings are applied to the scarf ad
本文介绍了UV固化六官能丙烯酸酷单体的半互穿网络结构的聚氨酷环氧胶粘剂晶片临时粘合剂及采用photo-DSC,FTIR-ATR光谱和凝胶含量等研究方法研究其制备条件优选，如:光引发剂含量和UV剂量。此外，采用TGA研究了热稳定性。
Introduction The UV curing technology is a technique of forming a polymer structure by chain reaction of the ring structure or a doublebond by activating radical/cation the initiator after exposure UV
粘接作为一种装配技术在诸如汽车、航空以及建筑等领域的应用越来越广泛.由于结构胶黏剂可以用于粘接不同性质的材料例如钢铁、铝材和复合材料,因此粘接技术在满足轻质化的要求中起到重要的作用.汽车制造商需要了解胶黏剂的机械性质,才能使用有限元(FE)分析的方法预测粘结构件在碰撞验证实验中的应力和变形情况.从这个角度来看,胶黏剂制造商必须提供用于表征在碰撞载荷情况下胶黏剂性能的方法和参数.本研究的重点在于应用
Introduction Cycloaliphatic epoxy resin has good electrical insulating properties and highglass transition tem peratures.Thus,this resin has been utilized in a variety of industrial applications such