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Exploratory investigation of failure mechanisms in transition regions between solid laminates and X-cor~(R) truss sandwich

机译:固体层压板与X-cor〜(R)桁架夹层之间过渡区域破坏机制的探索性研究

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Small sub-component specimens consisting of solid laminates at the end that transition to X-cor~(R) truss sandwich in the center, were tested in a combination of three point bending, uni-axial tension, and combined tension and bending. The failure process in the transition region was documented for each loading using digital video and high-resolution cameras. For the three-point bending tests, most of the deformation occurred in the solid laminate regions on either end of the specimen. Some pin debonding form the skin of the X-cor~(r) truss sand with was observed in the transition reign and was accompanied by audible "pings" throughout the loading.
机译:在三点弯曲,单轴拉伸以及拉伸和弯曲相结合的组合中测试了小的子组件样本,这些子组件样本的末端由实心层压板组成,过渡到中心的X-cor〜(R)桁架三明治。使用数字视频和高分辨率摄像机记录了每次加载的过渡区域中的故障过程。对于三点弯曲测试,大部分变形发生在试样两端的固体层压板区域。在过渡时期观察到一些X-cor〜(r)桁架沙皮的销钉脱胶现象,并在整个装载过程中伴有可听见的“砰”声。

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