Claim Missing Document
Check
Articles

Found 2 Documents
Search

Crashworthiness and Deformation Pattern Analysis of Single and Double Wall with Addition Infill Structure Bintara, Redyarsa Dharma; Choiron, Moch. Agus; Zakariya, Yahya; Shiddieqy, M. Hasbi Ash; Pratama, Fajar Adi
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 8, No 1 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016vbi12024p168

Abstract

Ship collisions are a phenomenon that often occurs in maritime transportation. One part of the ship that often experiences damage is the ship's wall (hull). This research aims to analyze and compare deformation patterns, stress distribution, and energy absorption in three wall models, single wall, double wall, and double wall, with the addition of infill structures. The infill structure used Polylactic Acid (PLA) polymer material because it provided convenience in the manufacturing process, while the walls of the test model used Aluminum 6063 material. The test model was developed by carrying out the design process using CAD software. Furthermore, a simulation test was carried out using software based on the finite element method with an explicit dynamic analysis type. Each test model received an impact load at a speed of 10 m/s that was carried out by the impactor. The results showed that the largest total energy absorption occurred in the double wall model with a filler structure (3643.49 J). In addition, the outward deformation pattern occurs in the double wall without a filler structure, while the inward occurs in the model with the addition of a filler structure. There were three types of stress distribution for single wall, double wall, and double wall with the addition of infill structure, namely concentrated stress, inline uniform stress, and a combination of both concentrated and inline uniform stress, respectively.
The Role Of Work Stress In Mediating The Effect Of Workload And Compensation On Job Satisfaction Pratama, Fajar Adi; Solihin, Agung
Review: Journal of Multidisciplinary in Social Sciences Vol. 1 No. 09 (2024): August
Publisher : Lentera Ilmu Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59422/rjmss.v1i09.565

Abstract

This study aims to determine the role of work stress in mediating the influence of workload and compensation on job satisfaction in employees of PT Jasindo Pratama. The research design used is a causal relationship with a quantitative approach, which aims to find a cause-and-effect relationship between the variables studied. The population in this study is 45 employees of PT Jasindo Pratama, which is also used as a research sample using a saturated sampling technique. The data analysis method used is Structural Equation Modeling (SEM) with Partial Least Squares (PLS). Data processing involves validity and reliability tests, structural tests, and hypothesis tests. The results of the study show that workload has a positive and significant influence on work stress. Workload has no effect on job satisfaction. Compensation has no effect on work stress. Compensation has a positive and significant influence on job satisfaction. Work stress has no effect on job satisfaction. Work stress cannot mediate the effect of workload and compensation on job satisfaction. Thus, these findings highlight the importance of the role of work stress in increasing job satisfaction among PT Jasindo Pratana employees. Although work stress cannot mediate the effect of workload and compensation on job satisfaction in the context of this study, it does not reduce the need to pay attention to and manage these factors in the context of human resource management.