极端载荷作用下FRP复合材料的本构建模

IF 0.7 Q4 MECHANICS Theoretical and Applied Mechanics Pub Date : 2018-01-01 DOI:10.2298/TAM180415011A
J. Asaro, D. Benson
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引用次数: 1

摘要

一个基于物理的,有限变形,速率和温度相关的理论和模型已经发展到模拟FRP复合材料和结构的变形和破坏。破坏模式包括:在极端压缩载荷下发生的纤维破碎和扭结;纤维断裂发生在例如碎裂;在高温下发生的层间剪切导致扭结;剥离和分层,包括与层压板扭结的耦合;以及在有芯玻璃钢板中发生的剥离。该理论/模型能够描述在高温下发生的准静态(包括蠕变),以及在冲击、爆炸或撞击过程中发生的动态变形和破坏。该模型在LS DYNA中实现,并描述了具体的示例仿真,说明了理论/模型的能力。在第1部分中,没有详细介绍碎片。纤维断裂和碎裂将在第二部分用具体的例子详细介绍。
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Constitutive modeling for FRP composite materials subject to extreme loading
A physically based, finite deformation, rate and temperature dependent theory and model have been developed to simulate the deformation and failure of FRP composite materials and structures. Failure modes include: inter alia, fiber crushing and kinking as occurs during extreme compressive loading; fiber fracture as occurs in for example fragmentation; interlaminar shear as occurs at elevated temperatures and that leads to kinking; debonding and delamination including the coupling with laminate kinking; and debonding as occurs in cored FRP panels. The theory/model is capable of describing quasi-static (including creep) as occurs at elevated temperatures, and dynamic deformation and failure as occurs during shock, blast or impact. The model is implemented within LS DYNA and specific example simulations are described that illustrate the theory/model capabilities. In Part I, fragmentation is not covered in detail. Fiber fracture and fragmentation are to be covered to detail with specific examples in Part II.
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来源期刊
CiteScore
0.90
自引率
0.00%
发文量
4
审稿时长
32 weeks
期刊介绍: Theoretical and Applied Mechanics (TAM) invites submission of original scholarly work in all fields of theoretical and applied mechanics. TAM features selected high quality research articles that represent the broad spectrum of interest in mechanics.
期刊最新文献
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