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All Journal Mechanical Engineering for Society and Industry
Tri Indah Winarni
Universitas Diponegoro, Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Deep touch pressure for calming and comfort therapy from the perspective of contact mechanics: A review Mohamad Izzur Maula; Tri Indah Winarni; Muhammad Imam Ammarullah; Ilham Yustar Afif; Farhan Ali Husaini; M. Danny Pratama Lamura; Jamari Jamari
Mechanical Engineering for Society and Industry Vol 3 No 3 (2023): Special Issue on Technology Update 2023
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.10598

Abstract

The art of touch therapy has been around for centuries and has evolved into various models and styles throughout the years. In addition to reducing muscle pain, relieving stress, and providing relaxation, this therapy has worked and has been useful for many people. Methods such as touch or pressure stimulate the parasympathetic nervous system, which plays a role in a person's emotional well-being. Knowing its effects, the interaction between therapeutic devices used on the body needs to be studied further. The contact area provided by the deep touch pressure (DTP) tool will also play an important role in the therapeutic outcome. In addition, levels of comfort in pressure treatment should also be explored further to ensure compliance. This paper describes in extensive the potential of DTP in providing a comfort effect from a contact mechanics perspective. Interactions of various DTP types and pressure distribution on body area have been further investigated to minimize the contact mechanics research gap in DTP and provide the bridge between sensory therapy and the mechanical engineering domain.
Stress distribution on the L1/L2 endplates under multiaxial loads: A finite element study Hasyid Ahmad Wicaksono; Muhammad Rafli; Muhamad Bilal; M. Danny Pratama Lamura; Mohamad Izzur Maula; Athanasius Priharyoto Bayuseno; Tri Indah Winarni; Jamari Jamari
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12843

Abstract

Understanding stress distribution on lumbar vertebral endplates is essential for predicting mechanical failure and guiding clinical interventions. Therefore, this study aims to investigate the von Mises stress patterns on the L1/L2 endplates under multiaxial loading using a 3-dimensional finite element (FE) model derived from CT imaging of a healthy 55-year-old male. Anatomical structures were reconstructed in Mimics 21.0, and simulations were conducted in ANSYS Workbench 2023 R2. Material properties for cortical bone, cancellous bone, and intervertebral disc were assigned based on validated biomechanical data. A compressive load of 500 N and multiaxial moments ranging from 2.5 to 10 N•m were applied to simulate physiological movements, while the inferior surface of L2 was fully constrained to reflect realistic boundary conditions. The results showed that the superior endplate experienced the highest von Mises stress, particularly during flexion and lateral bending, indicating increased vulnerability to mechanical overload. Extension loading significantly reduced stress on both endplates, with a 60.54% decrease on the superior endplate and 69.17% on the inferior endplate. Stress distribution was asymmetrical and was influenced by anatomical features, such as cortical thickness and trabecular alignment. These results show the superior endplate as a biomechanically critical region prone to degeneration, emphasizing its importance in implant design, preventive strategies, and risk assessment for microfracture in high-risk populations.
Co-Authors Athanasius Priharyoto Bayuseno Farhan Ali Husaini Hasyid Ahmad Wicaksono Ilham Yustar Afif Jamari Jamari M. Danny Pratama Lamura M. Danny Pratama Lamura Mohamad Izzur Maula Mohamad Izzur Maula Muhamad Bilal Muhammad Imam Ammarullah Muhammad Rafli