Use of collapsible structural elements as impact isolators, with special references to automotive applications

摘要: AbstractPart 1: Simple struts have been impacted between travelling and stationary masses the collapse found to consist of two distinct phases. The pre-failure phase, being primarily an elastic region, has analysed by stability criteria post-failure phase consideration plastic strut. Associated with is a large transient deceleration which found, among other parameters, be function strut shape.Part 2: A series sheet-metal structures and, like struts, pre- phases separate identities. again associated shape structure may give rise deceleration. This analysis led more complex elements, such as might in automobile frontal structure, finally complete analogue. Conclusions are drawn about structural parameters required bring abou...