4D printing of shape memory polymer composites: A review on fabrication techniques, applications, and future perspectives

MY Khalid, ZU Arif, R Noroozi, A Zolfagharian… - Journal of Manufacturing …, 2022 - Elsevier
In recent years, there has been rising interest in additively manufactured shape memory
polymers (SMPs) and their multi-functional composites. Four-dimensional (4D) printing is an …

4D printing: Technological developments in robotics applications

MY Khalid, ZU Arif, W Ahmed, R Umer… - Sensors and Actuators A …, 2022 - Elsevier
The idea of four-dimensional (4D) printing is the formation of intricate stimuli-responsive 3D
architectures that transform into different forms and shapes upon exposure to environmental …

4D metamaterials with zero poisson's ratio, shape recovery, and energy absorption features

R Hamzehei, A Serjouei, N Wu… - Advanced …, 2022 - Wiley Online Library
This article introduces novel 3D zero Poisson's ratio (ZPR) metamaterials for reversible
energy absorption applications fabricated by 4D printing technology. The designs are …

Metamaterial boat fenders with supreme shape recovery and energy absorption/dissipation via FFF 4D printing

M Bodaghi, N Namvar, A Yousefi… - Smart Materials and …, 2023 - iopscience.iop.org
In maritime transportation, a fender acts like a bumper to absorb the kinetic energy of a boat
berthing against a jetty, pier wall, or other boats. They have high energy absorption and low …

[HTML][HTML] Analytical relationships for 2D Re-entrant auxetic metamaterials: An application to 3D printing flexible implants

R Hedayati, A Yousefi, ML Dezaki… - journal of the mechanical …, 2023 - Elsevier
Both 2D and 3D re-entrant designs are among the well-known prevalent auxetic structures
exhibiting negative Poisson's ratio. The present study introduces novel analytical …

Recent progress in 4D printed energy-absorbing metamaterials and structures

CW Isaac, F Duddeck - Virtual and Physical Prototyping, 2023 - Taylor & Francis
The emergence of 4D printing from additive manufacturing has opened new frontiers in
crashworthiness application. Energy-absorbing structures with fixed geometrical shapes and …

3D‐Printed Soft and Hard Meta‐Structures with Supreme Energy Absorption and Dissipation Capacities in Cyclic Loading Conditions

A Yousefi, S Jolaiy, M Lalegani Dezaki… - Advanced …, 2023 - Wiley Online Library
The main objective of this article is to introduce novel 3D bio‐inspired auxetic meta‐
structures printed with soft/hard polymers for energy absorption/dissipation applications …

Emerging 4D printing strategies for on-demand local actuation & micro printing of soft materials

J Patadiya, M Naebe, X Wang, G Joshi… - European Polymer …, 2023 - Elsevier
Responsive functional composites comprise of materials that can react to environmental
stimuli and remodel their shapes. 4D printing and integrating active materials render …

State-of-the-art of sandwich composite structures: manufacturing—to—high performance applications

A Kausar, I Ahmad, SA Rakha, MH Eisa… - Journal of Composites …, 2023 - mdpi.com
This cutting-edge review highlights the fundamentals, design, and manufacturing strategies
used for sandwich composites. Sandwich composite structures have the advantages of light …

[HTML][HTML] Sandwich structures with repairable cores based on truncated cube cells

R Hedayati, A Yousefi, M Bodaghi - Composites Part B: Engineering, 2022 - Elsevier
With dramatic increase in 3D printing applications in industry, sandwich panels with 3D
printed cores have gained a lot of attention recently. In harmony with global movement …