Abstract: By using finite element method (FEM), we investigate hardening behavior during wiredrawing of ultra-fine stainless steel. To incorporate microstructural changes in polycrystalline grains of austenite stainless steel, slip systems are actually placed in cubic crystal lattice, and a crystal plasticity (CP) FEM analysis is performed. Some parameters (for example, initial hardening rates, and etc.) required in CP-FEM of stainless steel are missing and they are supposed to be difficult to obtain experimentally. Therefore, a series of uni-axial tensile simulations are conducted to determine those parameters which reproduce the experiment. Then, we performed CP-FEM simulations under multi-axial stress conditions corresponding to the wiredrawing condition to investigate the distribution of equivalent strain and stress.

• Publication Date: 14-Dec-2024
• DOI: 10.15224/978-1-63248-197-9-07
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Abstract: Small and Medium Enterprises (SMEs) in the construction industry play a pivotal role in addressing worldwide chronic challenges such as unemployment, inequality and poverty. In South Africa, small to medium emerging contractors in the construction sector experience a substantial failure rate despite their notable socio-economic impacts. Thus, emerging contractors have not yielded any significant growth in the previous years. Numerous contracting businesses have closed, leading their owners to pursue opportunities in different sectors. This pattern emphasizes the ongoing difficulties that emerging contractors in not only South Africa but also other African countries like Kenya, Nigeria, and Ghana are facing. To address these challenges, the South African government has put in place different policies and programs to help small contractors thrive. Still, advancement is sluggish, as the rate of failure continues to be alarmingly high. In order to tackle these problems, this research carri

• Publication Date: 14-Dec-2024
• DOI: 10.15224/978-1-63248-197-9-08
• Views: 0
• Downloads: 0