lap shear strength 定 义 搭接接头在拉伸载荷作用下破坏时单位胶接面所承受的应力。 应用学科 材料科学技术（一级学科），高分子材料（二级学科），胶黏剂与涂料（三级学科），胶黏剂（四级学科）

Lap shear tests (including single lap, double lap, lap-strap and thick adherend shear tests) are commonly used in adhesive testing. The mean shear stress, t , in the adhesive layer is the applied load divided by the area of the bonded overlap.

ASTM D1002 describes the procedure for evaluating the shear strength of adhesives used for bonding metals. These adhesives are commonly used in the automotive, aerospace, and electronics industries to bond various joints and subcomponents.

\mathbf{C} 的第一不变量 I_1 被其等容对应项取代。 最后一项取决于体积模量 K 和雅可比 J （即，右 Cauchy-Green 张量的第三主不变量）。 为了模拟不可压缩性，为 K 分配一个足够高的值（通常约为剪切模量的 1000 倍）。. 进行搭接剪切试验. 使用放置在两个较硬的矩形条之间的样品进行搭接剪切试验。

Lap shear testing is a method of determining the adhesive capabilities of things like glues and other adhesives. It can be considered a sub-category of adhesion testing and is typically used to measure the strength of bonds by calculating how capable …

2024年6月20日 · The lap shear test is used to measure the shear strength of adhesives and to certify that they can endure stress holding materials together. In this test, two bonded substrates are overlapped and a shear force is applied until rupture occurs.

Lap-shear strength refers to the ability to maintain adhesion when force is applied parallel to the bond line, while peel strength describes the ability to adhere when pulling force is applied perpendicular to the bond line.

The single lap shear test, Fig. 14.1(a) is also known as the thin lap shear test and is the most widely used method of producing data on adhesively bonded joints. Variants of this test are described in many standards, for example ISO 4587 and ASTM D 1002.

Lap shear strength testing measures the ability of a material to withstand stresses set in a plane, where the exerted shear force is moving the two substrates in opposite directions. It is one of the most common stresses that a bonded joint can face during service, especially in structural bonding applications.

ISO 14129 – Fibre-reinforced plastic composites — Determination of the in-plane shear stress/shear strain response, including the in-plane shear modulus and strength, by the ±45° tension test method