Ahmad Serjouei
Nottingham Trent University
Composite numberSelf-healing hydrogelsUltimate tensile strengthConical surfaceEngineeringFatigue limitCeramicFinite element methodLattice (order)FabricationBallistic limitPhotopolymerNanoparticleComposite materialNanotechnologyThermosetting polymerActuatorShape-memory polymerMaterials scienceConstitutive equationBiocompatibilityUV curingBoron carbideStiffnessPhotoinitiatorSilicon carbideBi layerCeramic metalElastomerComputer scienceShape-memory alloyProjectileAluminium3D printingMechanicsStructural engineeringArmourForensic engineeringMechanical engineeringPlasticityAnisotropyStress (mechanics)Titanium alloy
27Publications
11H-index
407Citations
Publications 27
Newest
#1Biao Zhang (NPU: Northwestern Polytechnical University)H-Index: 4
#2Ahmad Serjouei (NTU: Nottingham Trent University)H-Index: 11
Last. Qi Ge (Southern University of Science and Technology)H-Index: 26
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Abstract We report a dual-stage photocrosslinked polymer network based on sequential ultraviolet (UV)-triggered radical polymerization and thermally activated etherification, applicable to the fabrication of tailorable and programmable high-resolution structures. The first stage involves photoinitiated polymerization of monomer and crosslinker to obtain an intermediate polymer network. As such, sophisticated two-dimensional (2D) and micro-scale three-dimensional (3D) structures can be made by us...
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#1Armin Yousefi (UT: University of Tehran)H-Index: 2
#2Ahmad Serjouei (NTU: Nottingham Trent University)H-Index: 11
Last. Mahdi Bodaghi (NTU: Nottingham Trent University)H-Index: 24
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In the present study, the fatigue behavior and tensile strength of A6061-T4 aluminum alloy, joined by friction stir spot welding (FSSW), are numerically investigated. The 3D finite element model (FEM) is used to analyze the FSSW joint by means of Abaqus software. The tensile strength is determined for FSSW joints with both a probe hole and a refilled probe hole. In order to calculate the fatigue life of FSSW joints, the hysteresis loop is first determined, and then the plastic strain amplitude i...
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#1Armin Yousefi (NTU: Nottingham Trent University)
#1Armin YousefiH-Index: 2
Last. Mahdi BodaghiH-Index: 24
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Bonded patches are widely used in several industry sectors for repairing damaged plates, cracks in metallic structures, and reinforcement of damaged structures. Composite patches have optimal properties such as high strength-to-weight ratio, easiness in being applied, and high flexibility. Due to recent rapid growth in the aerospace industry, analyses of adhesively bonded patches applicable to repairing cracked structures have become of great significance. In the present study, the fatigue behav...
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#2Ebrahim YaraliH-Index: 5
Last. Mahdi BodaghiH-Index: 24
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Today, the rational combination of materials and design has enabled the development of bio-inspired lattice structures with unprecedented properties to mimic biological features. The present study aims to investigate the mechanical performance and energy absorption capacity of such sophisticated hybrid soft–hard structures with gradient lattices. The structures are designed based on the diversity of materials and graded size of the unit cells. By changing the unit cell size and arrangement, five...
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Last. Ali AlazmaniH-Index: 9
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Soft sensors are essential for robotic systems to safely interact with humans and the environment. Although significant research has been carried out in the field of soft tactile sensing, most of these sensors are restricted to a predefined geometry and a fixed measurement range, hence limiting their application. This paper introduces a novel approach to soft sensing by proposing a soft load-sensing unit with an adjustable mechanical compliance achieved using an elastically inflatable fluidic do...
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#2Ali ZolfagharianH-Index: 17
Last. Mahdi BodaghiH-Index: 24
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This paper presents nonlinear finite element (FE) models to predict time- and temperature-dependent responses of shape memory polymer (SMP) foams in the large deformation regime. For the first time, an A SMP foam constitutive model is implemented in the ABAQUS FE package with the aid of a VUMAT subroutine to predict thermo-visco-plastic behaviors. A phenomenological constitutive model is reformulated adopting a multiplicative decomposition of the deformation gradient into thermal and mechanical ...
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#1Shukri Afazov (NTU: Nottingham Trent University)
#2Eleonora Semerdzhieva (University of Nottingham)
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This paper presents an improved mathematical model for calculation of distortion vectors of two aligned surface meshes. The model shows better accuracy when benchmarked to an existing model with ex...
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#1Mahdi Bodaghi (NTU: Nottingham Trent University)H-Index: 24
#2Ahmad Serjouei (NTU: Nottingham Trent University)H-Index: 11
Last. D. Durand (NTU: Nottingham Trent University)H-Index: 1
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Abstract The aim of this paper is to introduce dual-material auxetic meta-sandwiches by four-dimensional (4D) printing technology for reversible energy absorption applications. The meta-sandwiches are developed based on an understanding of hyper-elastic feature of soft polymers and elasto-plastic behaviors of shape memory polymers and cold programming derived from theory and experiments. Dual-material lattice-based meta-structures with different combinations of soft and hard components are fabri...
29 CitationsSource
#1Paul Wood (University of Derby)H-Index: 9
#2Tomasz Libura (PAN: Polish Academy of Sciences)H-Index: 2
Last. Ahmad Serjouei (University of Derby)H-Index: 11
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In this paper, the influences of build orientation and post-fabrication processes, including stress-relief, machining, and shot-peening, on the fatigue behavior of stainless steel (SS) 316L manufactured using selective laser melting (SLM) are studied. It was found that horizontally-built (XY) and machined (M) test pieces, which had not been previously studied in the literature, in both stress-relieved (SR) or non-stress-relieved (NSR) conditions show superior fatigue behavior compared to vertica...
5 CitationsSource
#1Saeed Akbari (Research Institutes of Sweden)H-Index: 11
#2Amir Hosein Sakhaei (University of Exeter)H-Index: 8
Last. Qi Ge (SUTD: Singapore University of Technology and Design)H-Index: 26
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Shape memory alloys (SMAs) have been widely used to fabricate soft actuators by embedding SMA wires into various soft matrices manufactured by conventional moulding methods or novel three-dimensional (3D) printing techniques. However, soft matrices of SMA based actuators are typically fabricated from only one or two different materials. Here, we exploit the great manufacturing flexibility of multimaterial 3D printing to fabricate various bending, twisting and extensional actuators by precisely c...
20 CitationsSource