International Journal of Materials and Product Technology (3 papers in press)

Special Issue on: OA The Application of Advanced Materials for Smart and Sustainable Manufacturing

• Open Access

  Design modelling and digital visualisation application of carbon fibre composite materials under 3D printing manufacturing process ( Free Full-text Access )

  by Xia Rong, Lijuan Dai 
  Abstract: Traditional carbon fibre composite manufacturing processes, such as hand lay-up and moulding, often encounter challenges including complex geometry, low manufacturing precision, and a disconnect between design and manufacturing. Especially when dealing with complex structural designs, it is challenging to precisely control the fibre arrangement and internal structure, resulting in low production efficiency and difficulty in meeting high-performance requirements. This paper applies a 3D printing manufacturing process to provide a more efficient and precise design and manufacturing solution. The design and modelling of carbon fibre composite materials are carried out through computer-aided design (CAD) software, considering factors such as fibre arrangement, stacking order, geometry, and material thickness. The material properties are adjusted according to the requirements, and the model is converted into the STL (stereolithography) format required for 3D printing.
  Keywords: 3D printing technology; carbon fibre composites; computer-aided design; CAD; finite element analysis; FEA; robot printing technology.
  DOI: 10.1504/IJMPT.2025.10074218
   
  

• Open Access

  Mechanical properties of materials during the removal of reinforced concrete internal support beams ( Free Full-text Access )

  by Jie Luo, Boke Chen, Guisheng Yue, Shiliang Xie, Bingfu Bai 
  Abstract: This paper uses finite element analysis and fibre optic sensing technology to dynamically monitor and analyse the stress and strain changes of materials during the removal of reinforced concrete internal support beams, revealing the impact of different removal processes on the mechanical properties of materials. First, a three-dimensional finite element model is established using ANSYS, and the material parameters of the steel bars and concrete are input. Second, fibre optic Bragg grating (FBG) sensors are placed at key locations on the support beams to collect stress and strain data, which are then processed using Python. Finally, BIM technology is used to optimise the demolition sequence, and the impact of dynamic loads on the structure is evaluated based on finite element analysis. The experimental data revealed the effects of different demolition methods on the mechanical properties of reinforced concrete support beams.
  Keywords: reinforced concrete; demolition process; mechanical properties; finite element analysis; FEA; fibre optic sensor; fibre Bragg grating; FBG.
  DOI: 10.1504/IJMPT.2025.10074337
   
  

• Open Access

  Role of wearable conjugated material pneumatic wrist in sports rehabilitation ( Free Full-text Access )

  by Zhigang Shao, Xingxuan Cui, Mingxuan Zhang, Chengwei Niu 
  Abstract: In order to address the limitations of limited flexibility, poor mechanical durability, and insufficient biocompatibility of traditional wearable pneumatic wrists, this paper introduces a novel structural material of phosphorus conjugated microporous polymer as a pneumatic flexible actuator. Firstly, this paper prepares phosphorus containing conjugated microporous compounds using the Sonogashira method, and then uses the prepared phosphorus containing conjugated microporous compounds as materials for pneumatic flexible actuators to obtain actual actuators. On this basis, this paper combines commonly used materials to develop a wearable conjugate material pneumatic wrist. Finally, this paper conducts a control analysis on the deformation and mechanical properties of the pneumatic wrist. The research results indicate that when the wrist joint movement angle is 90 degrees, the output torque of the wearable conjugate material pneumatic wrist under a pressure of 0.02 MPa is 0.039. This indicates that the wearable conjugate material pneumatic wrist has good safety and adaptability.
  Keywords: sports rehabilitation; wearable pneumatic wrist; conjugated material; pneumatic flexible actuator; drive control.
  DOI: 10.1504/IJMPT.2026.10075612