Measurements of mechanical material properties under compressive and bending load of additive manufactured polymers

This repository contains data ofcompression and bending tests on additively manufactured specimens made of polylactic acid (PLA), polycarbonate (PC), polyamide (PA) and polyethylene terephthalate glycol-modified (PETG). The tests were conducted on a Zwick/Roell Z250 universal testing machine according to the technical standards ISO 178:2019 and ISO 604:2002. The experimental design considers a variation of layer height of the additive manufacturing method in 0.1 mm steps and a variation of number of walls within the interval {1;3;5} walls. All materials were printed with a solid infill (100%). The bending specimens were positioned in a way, so their cylindrical axis is along the z-axis of the 3D printer. The beam specimens for three-point bending were positioned flat on the bed of the 3D printer. Both assured load application perpendicular to the slicing layers. According to our experience, the force travel signals of the compression tests must be compensated by a machine stiffness of 99.056 kN/mm to obtain correct elastic behavior.

本仓库收录了聚乳酸（PLA）、聚碳酸酯（PC）、聚酰胺（PA）及聚对苯二甲酸乙二醇酯改性型（PETG）增材制造试样的压缩与弯曲试验数据。试验采用Zwick/Roell Z250万能试验机，严格遵循ISO 178:2019与ISO 604:2002技术标准开展。实验设计包含两项变量：增材制造工艺的层厚以0.1 mm为步长进行梯度设置，壁数的变量区间为{1；3；5}。所有试样均采用100%实心填充进行打印。弯曲试样的摆放方式为圆柱轴线沿3D打印机的z轴方向；用于三点弯曲的梁式试样则平置于3D打印机打印平台上，两种摆放方式均确保载荷施加方向垂直于切片层。根据本团队的实验经验，需以99.056 kN/mm的机器刚度对压缩试验的力-位移信号进行补偿，方可获得准确的弹性力学行为。

搜集汇总

背景与挑战

背景概述

该数据集提供了增材制造聚合物（包括PLA、PC、PA和PETG）在压缩和弯曲载荷下的机械性能测试数据，测试严格遵循ISO标准并在万能试验机上进行。数据集特点在于系统性地研究了层高和壁数对材料性能的影响，所有试样均采用实心填充并确保载荷垂直于切片层，为增材制造材料的力学行为分析提供了可靠依据。