Adaptive Structures
Engineered structures that change shape or stiffness to adapt to conditions.
Bio-inspired re-entrant honeycomb metamaterial with programmable dual-plateau mechanical response
A bio-inspired re-entrant honeycomb mechanical metamaterial is described as having a programmable dual-plateau mechanical response.
Martensitic Transformation in Crystal-Amorphous Superlattices of NiTi Shape Memory Alloy
Crystal-amorphous superlattices in NiTi are simulated to shift martensitic transformation behavior, boosting reversibility and stiffness while raising transformation critical stress.
HVAF Spraying of NiTi Coatings: Microstructure, Phase Transformation and Shape Memory Behavior
HVAF spraying enables thick (100–300 µm) NiTi shape-memory alloy coatings on mild steel that can undergo martensitic transformation and exhibit thermal actuation and shape memory effects after annealing.
Scientists discover a strange property in rice and turn it into a smart material
A rice-derived, pressure-rate-dependent effect was used to engineer a material that automatically adapts stiffness to distinguish gentle motion from sudden impacts.
Recent progress in 4D printing: materials, methods and applications
This review synthesizes how 4D printing couples additive methods with stimulus-responsive materials—especially shape-memory polymers—to achieve programmed, time-dependent shape and property changes, while noting reliability and scalability
Function, Complexity and Thermodynamics in Adaptive and Intelligent Soft Matter Systems: An Information-Theoretical Framework
An information-channel framework quantifies responsive, adaptive, and intelligent soft matter using three metrics and benchmark planes tied to thermodynamics and noise.
Anomalous thermal and elastic properties of an epitaxial NiTi film exhibiting R-phase
Transient grating spectroscopy tracks how an epitaxial NiTi film’s shear moduli and thermal diffusivity change across an austenite–R-phase–martensite cycle, suggesting R-phase-driven thermal switching.
Geometric memory in incomplete phase transitions across dimensions
A nucleation-and-growth model with incomplete reversion produces a geometric memory in plate-size distributions, with stronger memory in 2D than in 3D or lamellar geometries.
On the proposed concept of mechanical phasons in Ni-Mn-Ga modulated martensite
A mechanical model suggests that modulation phasons in Ni-Mn-Ga modulated martensite can produce macroscopic shear compliance for commensurate (and weakly incommensurate) modulations, but not for strongly incommensurate ones.
Thermo-mechanically coupled phase-field fracture model considering elastocaloric effect of shape memory alloy
A coupled phase-field fracture model for Mn-Cu shape memory alloys incorporates elastocaloric thermal strain from martensitic transformation to simulate crack growth and thermally assisted toughening.
Multimaterial 4D printing of adaptive and reconfigurable auxetic metastructures
Multimaterial 4D printing with PLA/PCL enables auxetic metastructures whose geometry–material coupling yields tunable mechanics, energy absorption, and thermally induced reconfigurability.
Logarithmic-Time Geodesically Convex Decomposition in Programmable Matter
It presents an O(log n)-round algorithm to decompose arbitrary amoebot programmable-matter structures into O(|H|) geodesically convex regions using reconfigurable circuits.
3D Finite Element-Based Multiphysics Simulation of a Shape Memory Alloy Hybrid Composite Module
A coupled 3D ANSYS LS-DYNA multiphysics model for SMA hybrid composite actuators captures thermomechanical phase transformation and reproduces temperature-dependent hysteresis with experimental validation.
Additively manufactured Shape Memory Alloy Hybrid Composites with a polymer matrix featuring a re-entrant honeycomb structure
A fully additive SLA+TFP route fabricates SMA hybrid composites with a re-entrant honeycomb polymer structure, enabling geometry-tuned, thermally activated out-of-plane bending with improved reproducibility via automated SMA placement.
Reprogrammable metamaterial robot with embodied versatile computation and mechanical intelligence
A reprogrammable metamaterial robot is presented as combining versatile computation with mechanical intelligence.
Real-time reprogrammable snapping mechanical metamaterial with nonlinear force-displacement responses
A real-time reprogrammable snapping mechanical metamaterial is reported to exhibit nonlinear force–displacement responses.
A auxetic metamaterial structure: analysis of shear and bending, mechanical characterization
Auxetic (negative Poisson’s ratio) re-entrant unit-cell designs integrated into bone screws improved load-bearing capacity and deformation resistance under shear and bending versus conventional screws.
Sublinear-Time Reconfiguration of Programmable Matter with Joint Movements
The paper shows sublinear-time centralized reconfiguration of geometric amoebot programmable matter using joint parallel movements, including universal reconfiguration to a line segment in O(√n log n) rounds.
Sliding Cubes in Parallel
The paper studies parallel reconfiguration of sliding cube modules for programmable matter and proves strong NP-hardness and approximation hardness results for deciding feasible and optimal makespans.
Shape-morphing greenhouse: design of a thermally responsive transparent 4D-printed structure
A proof-of-concept transparent 4D-printed PLA greenhouse structure was tested for thermally driven shape-morphing ventilation using bio-inspired mechanisms, showing concept potential but material and structural limits.
3D printing on pre-stressed textiles: peel test evaluation of adhesion factors in 4D textiles
A factorial study identifies printing and pre-tension parameters that maximize peel-test adhesion between 3D-printed reinforcements and pre-stressed textile substrates in 4D textiles.
Transformation front kinetics in deformable ferromagnets
A continuum magneto-mechanical framework is developed to derive thermodynamic driving forces and efficiently model transformation-front kinetics in deformable ferromagnets and magnetic shape-memory alloys.
Variational phase-field modeling of fracture and fatigue in shape memory alloys: a one-dimensional study
A new 1D variational phase-field model links SMA phase transformation and damage to reproduce distinctive fracture localization and fatigue trends in Ni-Ti multi-wire samples.
DiffeoMorph: Learning to Morph 3D Shapes Using Differentiable Agent-Based Simulations
DiffeoMorph is an end-to-end differentiable method that learns agent-based morphogenesis rules to transform minimally patterned starts into target 3D shapes using an invariant Zernike-based shape-matching loss.