实车碰撞试验表明：改进后，车架结构的耐撞性有明显提高。
The real vehicle crash test indicates that the crashworthiness of the frame structure has improved apparently.
近年来，由于复合材料结构耐撞性的重要性和复杂性，所以，复合材料结构耐撞性是工程力学领域的一个研究的热点。
The crashworthiness of composite structures has become a hot research topic in recent years because of its importance and complicated nature.
结构受冲击作用下的强度、刚度、稳定性、临界能量荷载和临界冲击力的研究属结构耐撞性研究范畴，由于结构在冲击作用下的响应是一个复杂的非线性力学问题，目前该研究领域还比较弱。
The research of intensity, rigidity, the stability, critical energy and critical impact force belongs to the fields of structure impact resistance, which the structure is struck in the impact load.
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