In-plane torsion test – Analysis and design of the clamps

IF 2.6 3区材料科学 Q2 ENGINEERING, MANUFACTURING

International Journal of Material Forming Pub Date : 2025-04-08 DOI:10.1007/s12289-025-01901-y

Fabian Stiebert, Heinrich Traphöner, A. Erman Tekkaya

{"title":"In-plane torsion test – Analysis and design of the clamps","authors":"Fabian Stiebert, Heinrich Traphöner, A. Erman Tekkaya","doi":"10.1007/s12289-025-01901-y","DOIUrl":null,"url":null,"abstract":"<div><p>The objective of the paper is to analyze the fundamental influence of the tool design on the in-plane torsion test in order to create a common basis for carrying out tests that enable the characterization of comparable material parameters between various test setups. The clamps have a major influence on the process limits wrinkling and slippage of the in-plane torsion test. The size and the surface structure of the clamping on the process limit of slipping and wrinkling is investigated. Results show that a ring-shaped clamping surface can transmit up to 50% more torque at the same clamping force compared to a full-circle clamping surface. Investigations show that torque transmission through plain clamping surfaces is not possible for thin sheets (<i>t</i> = 0.5 to 3.0 mm). In order to enable torque transmission in spite of this, the structuring of the clamping surface is necessary. Therefore, radial serrations are well suited, to ensure a homogenous torque transmission over the circumference. An analytical approach was developed and numerically validated, that can determine the indentation depth, the maximum transmittable torque and the necessary clamping force for radial serrations. The geometrical and material specific influence on the process boundary of wrinkling was analyzed and a material independent recommendation for the geometrical shape of the clamps was proposed. This publication is an extended version of the paper “In-Plane Torsion Test—Analysis of the Tool Design”, which was published in the Proceedings of the 14th International Conference on the Technology of Plasticity—Current Trends in the Technology of Plasticity (ISBN 978–3-031–41022-2).</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"18 2","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-025-01901-y.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Material Forming","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12289-025-01901-y","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}

引用次数: 0

Abstract

The objective of the paper is to analyze the fundamental influence of the tool design on the in-plane torsion test in order to create a common basis for carrying out tests that enable the characterization of comparable material parameters between various test setups. The clamps have a major influence on the process limits wrinkling and slippage of the in-plane torsion test. The size and the surface structure of the clamping on the process limit of slipping and wrinkling is investigated. Results show that a ring-shaped clamping surface can transmit up to 50% more torque at the same clamping force compared to a full-circle clamping surface. Investigations show that torque transmission through plain clamping surfaces is not possible for thin sheets (t = 0.5 to 3.0 mm). In order to enable torque transmission in spite of this, the structuring of the clamping surface is necessary. Therefore, radial serrations are well suited, to ensure a homogenous torque transmission over the circumference. An analytical approach was developed and numerically validated, that can determine the indentation depth, the maximum transmittable torque and the necessary clamping force for radial serrations. The geometrical and material specific influence on the process boundary of wrinkling was analyzed and a material independent recommendation for the geometrical shape of the clamps was proposed. This publication is an extended version of the paper “In-Plane Torsion Test—Analysis of the Tool Design”, which was published in the Proceedings of the 14th International Conference on the Technology of Plasticity—Current Trends in the Technology of Plasticity (ISBN 978–3-031–41022-2).

查看原文本刊更多论文

面内扭转试验。夹具的分析和设计

本文的目的是分析工具设计对面内扭转试验的基本影响，以便为开展各种测试设置之间的可比较材料参数表征的测试创建一个共同的基础。夹具对面内扭转试验的工艺极限起皱和滑移有重要影响。研究了夹紧尺寸和表面结构对打滑起皱的工艺限制。结果表明，在相同的夹紧力下，环形夹紧面传递的扭矩比全圆夹紧面多50%。研究表明，对于薄板（t = 0.5至3.0 mm），通过普通夹紧面传递扭矩是不可能的。尽管如此，为了使扭矩传递，夹紧面的结构是必要的。因此，径向锯齿非常适合，以确保在圆周上均匀的扭矩传输。建立了一种分析方法并进行了数值验证，该方法可以确定径向齿形的压痕深度、最大传递扭矩和必要的夹紧力。分析了几何形状和材料对起皱边界的影响，提出了一种与材料无关的夹具几何形状建议。本出版物是发表在《第十四届国际塑性技术会议论文集-塑性技术的发展趋势》（ISBN 978-3-031-41022-2）上的论文《工具设计的平面内扭转测试分析》的扩展版。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Material Forming ENGINEERING, MANUFACTURING-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

5.10

自引率

4.20%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal publishes and disseminates original research in the field of material forming. The research should constitute major achievements in the understanding, modeling or simulation of material forming processes. In this respect ‘forming’ implies a deliberate deformation of material. The journal establishes a platform of communication between engineers and scientists, covering all forming processes, including sheet forming, bulk forming, powder forming, forming in near-melt conditions (injection moulding, thixoforming, film blowing etc.), micro-forming, hydro-forming, thermo-forming, incremental forming etc. Other manufacturing technologies like machining and cutting can be included if the focus of the work is on plastic deformations. All materials (metals, ceramics, polymers, composites, glass, wood, fibre reinforced materials, materials in food processing, biomaterials, nano-materials, shape memory alloys etc.) and approaches (micro-macro modelling, thermo-mechanical modelling, numerical simulation including new and advanced numerical strategies, experimental analysis, inverse analysis, model identification, optimization, design and control of forming tools and machines, wear and friction, mechanical behavior and formability of materials etc.) are concerned.