Evaluation of hybrid laser-cut and cast miniature fracture specimens |
| |
| Institution: | 1. The University of Tulsa, Mechanical Engineering, Tulsa, USA;2. University of Oklahoma Health Sciences Center, Oklahoma City, USA;1. Department of Polymer Science & Engineering, Hannam University, Daejeon 34054, Republic of Korea;2. Underground Solutions Inc., Poway, CA 92064, USA;3. Ansco Inc., Daejeon 34051, Republic of Korea;1. Department of Electrical, Electronic, and Information Engineering “Guglielmo Marconi”, University of Bologna, Viale Risorgimento 2, Bologna, 40136, Italy;2. Department of Civil, Chemical, Environmental, and Materials Engineering, University of Bologna, Via Terracini 28, Bologna, 40131, Italy;3. Department of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale Risorgimento 4, Bologna, 40136, Italy;1. Toray Research Center, Inc., Otsu, 520-8567, Japan;2. Application R&D Center, Horiba Ltd., Kyoto, 601-8510, Japan;3. Rakuyo Giken Co., Ltd., Kumiyama-cho, Kyoto, 613-0023, Japan;4. Graduate School of Science, Hiroshima University, Higashihiroshima, 739-8526, Japan |
| |
| Abstract: | This paper presents a new hybrid laser-cutting method for producing fracture test specimens from thermosetting materials. The hybrid approach combines casting of a sheet of material with subsequent laser-cutting of the test specimens. The new approach was compared to the traditional casting method using a fracture toughness test. For this study, a compact version of the tapered double cantilever beam (cTDCB) was used as a specimen geometry for both manufacturing methods. The cTDCB specimen is crack length independent, and crack length investigations were performed to ensure the crack length independence of the cTDCB specimens. The specimens that were made by the hybrid laser-cut method were found to be comparable to the specimens obtained by the traditional casting method. Moreover, the laser-cut method provides a fast and accurate method to make a significant number of samples in a reasonable time. These tests show that the hybrid laser-cut method could be a good alternative to the traditional casting method. |
| |
| Keywords: | TDCB specimen Quasi-static Laser-cut Casting Fracture test Polymer Dental resin composites Specimens miniatures |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
