Qualitative pivot damage analysis in aluminum printed pantographic sheets: Numerics and experiments

被引：96
|
作者：
Spagnuolo, M. [1 ]
Barcz, K. [2 ]
Pfaff, A. [3 ]
dell'Isola, F. [4 ,5 ]
Franciosi, P. [1 ]
机构：
[1] Univ Paris 13, CNRS, LSPM UPR3407, Sorbonne Paris Cite, F-93430 Villetaneuse, France
[2] Warsaw Univ Technol, Inst Mech & Printing, Warsaw, Poland
[3] Fraunhofer EMI, Addit Design & Mfg, Freiburg, Germany
[4] Univ Roma La Sapienza, Rome, Italy
[5] M&MoCS Int Ctr Math & Mech Complex Syst, Rome, Italy
来源：
MECHANICS RESEARCH COMMUNICATIONS | 2017年 / 83卷
关键词：
Pantographic structures; Aluminum; Co-continuous fibers; Damage; 3D printing; LARGE DEFORMATIONS; IDENTIFICATION;
D O I：
10.1016/j.mechrescom.2017.05.005
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper we present a model in which the motions of two families of beams constituting a pantographic sheet, when described with two independent placement fields, allows to correctly simulate the points of fracture onset in axial tension test. The deformation energy is postulated in function of these independent displacements as involving an additive quadratic term of deformation energy depending on the squared norm of their difference. The first performed numerical simulations establish that the most strained pivots are exactly the ones where one observes the first rupture. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：47 / 52
页数：6
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