Dynamic energy absorption characteristics of additively-manufactured shape-recovering lattice structures

被引：33

作者：

Davami, Keivan ^{[1
]}

Mohsenizadeh, Mehrdad ^{[1
]}

Munther, Michael ^{[1
]}

Palma, Tyler ^{[1
]}

Beheshti, Ali ^{[2
]}

Momeni, Kasra ^{[3
,4
]}

机构：

[1] Lamar Univ, Dept Mech Engn, Beaumont, TX 77710 USA

[2] George Mason Univ, Dept Mech Engn, Fairfax, VA 22030 USA

[3] Louisiana Tech Univ, Dept Mech Engn, Ruston, LA 71270 USA

[4] Louisiana Tech Univ, Inst Micromfg, Ruston, LA 71270 USA

来源：

MATERIALS RESEARCH EXPRESS | 2019年 / 6卷 / 04期

关键词：

cellular materials; additive manufacturing; impact; energy absorption; CLAMPED SANDWICH PLATES; MECHANICAL-PROPERTIES; IMPACT RESPONSE; DEFORMATION; LIGHTWEIGHT; MICROLATTICES; HONEYCOMBS; DEPOSITION; RESISTANCE; MODES;

D O I：

10.1088/2053-1591/aaf78c

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

With the advent of additive manufacturing, fabrication of complex structures with high efficiency for energy absorption and blast and impact mitigation has entered a new era. In this research the role of the architecture and material properties on the static and dynamic energy absorption properties of additively-manufactured complex cellular structures out of two different materials were studied under puncture and crush tests. A finite element simulation of the unit cell was also conducted to study the effect of loading rate on the final response of the material where the results showed good agreement with the experimental observations. It is shown that the studied additively manufactured structures were able to recover their shape significantly after a major deformation due to the impact. These results show the potential of additive manufacturing as a versatile tool for creating structures with complex geometries for energy absorption.

引用

页数：11

共 65 条

[1] 3D printed polyurethane honeycombs for repeated tailored energy absorption [J].