Welcome to My Project Home

Welcome to the heart of my research endeavor. This project home serves as the showcase for several pivotal research projects, each delving into the intricate realms of material science. Our exploration spans the spectrum from continuum to atomic levels, unveiling the secrets of material fracture. Here, we unravel the mysteries of how materials break, seeking not only to comprehend the underlying mechanisms but also to enhance material toughness. The remarkable journey unfolds as we utilize the fracture of materials as a gateway to discover astonishing properties within them. This pursuit transcends conventional understanding, paving the way for groundbreaking insights that hold immense promise for advancing the field of materials science. Through our investigations, we aspire to push the boundaries of knowledge and contribute to the development of materials with unprecedented resilience and extraordinary properties.

I express my heartfelt gratitude to my advisor, Prof. Zubaer Hossain, for his invaluable guidance and unwavering support throughout these research projects. Without his expertise, mentorship, and encouragement, completing these projects alone would have been an insurmountable challenge. Prof. Hossain's dedication to my academic growth has been instrumental in the successful realization of these endeavors, and I am truly thankful for the privilege of working under his mentorship.

Atomistic mechanisms of crack nucleation and propagation in amorphous silica

Welcome to the enigmatic world of amorphous materials, where complexity reigns supreme! These mysterious substances, lacking the well-defined crystalline structure that characterizes their counterparts, present an exhilarating challenge for scientists. At the atomic scale, the fracture of amorphous materials is a puzzle waiting to be solved—a tantalizing mystery in the vast realm of materials science. Imagine diving headfirst into the intricacies of their fracture, uncovering secrets at the tiniest scales. The unique mechanical behavior of amorphous materials, stemming from their shapeless structure, adds an extra layer of complexity to the study of their fracture mechanisms. Join us on an adventure as we delve into the atomic-level processes, peeling back the layers of uncertainty to reveal not only the fundamental science behind their mechanical response but also the keys to unlocking groundbreaking insights. This journey isn't just about unraveling mysteries; it's a quest that could reshape our understanding of material behavior and pave the way for the creation of advanced materials with meticulously tailored properties. Get ready for a thrilling ride into the heart of amorphous wonder!

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Stress-localization induced toughening in CNT–silica nanocomposites

Glass, the fragile substance we encounter in our everyday lives, such as our vulnerable phone screens and delicate windshields, is prone to shattering with significant repair costs. Imagine a world where this brittleness is a thing of the past! We have delved into the realm of advanced simulation tools to revolutionize the toughness of materials like glass. By introducing carbon nanotubes (CNT), hailed as the strongest and stiffest materials ever discovered in terms of tensile strength and elastic modulus, into the silica matrix, we have embarked on a thrilling journey. We meticulously tailored the interface material between silica and CNT, simulating the impact of cracks on this groundbreaking CNT-silica nanocomposite. The results are nothing short of astonishing! The prospect of enhancing the resilience of everyday materials through such innovative methods is not just intriguing but marks a leap towards a future where fragility gives way to durability, and the possibilities seem boundless!

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Structure-dependent strength and toughness in dodecahedral silica nanocage

In the mesmerizing realm of the microscopic, where wonders abound, nanocages emerge as a captivating feature. These minute structures, akin to the intricate beauty found in the macroscopic world, hold immense promise, especially in the realms of drug delivery and nanotechnology. Enter the spotlight: the silica nanocage, a newfound gem among self-assembled mesoporous silica nanoparticles. This dodecahedral wonder not only unveils an exciting era of nanocage creation but also boasts controllable size and structural parameters, opening up unprecedented avenues in biology, medicine, and nanotechnology. However, these nanocages, while brimming with potential, face a formidable adversary—irrecoverable mechanical deformation. Under the duress of extreme conditions involving pressure and mechanical force, their biological and chemical functions are hindered. Fear not, for in this cutting-edge study employing advanced simulation tools, we embark on a thrilling exploration of how these nanocages deform under the forces of hydrostatic tension and compression. Brace yourselves for a journey into the microscopic universe, where the secrets of nanocages unfold in the face of extraordinary challenges!

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Critical inter-defect distance that modulates strength and toughness in defective 2D sp2-lattice

Imagine entering the microscopic realm, where phenomena defy our intuition. Take 2D nanomaterials, for instance, with properties that astound beyond the limits of the macroscopic world. Picture this: I have two boards, one with a single hole drilled through it, and the other riddled with a thousand holes. Now, brace yourself, because I'm about to tell you that the second board, the one with a myriad of holes, is just as tough as the first! Sounds crazy, right? Yet, in the microscopic universe, it's true. In this study, we're diving into the fascinating world of 2D materials, using hexagonal boron nitride (hBN) and graphene as examples. Our mission? To unravel the impact of point defects, specifically MV defects, on the overall mechanical properties of these extraordinary materials. Get ready for a journey where the tiniest details make the biggest differences!

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Line-defect orientation- and length-dependent strength and toughness in hBN

Imagine delving into the microscopic realm, where phenomena defy our intuition. Consider 2D nanomaterials, whose properties astonish beyond the limits of the macroscopic world. Picture this: I have two boards, one with a single hole drilled through it, and the other, I am using a knife to cut a long narrow tear. Now, brace yourself because I'm about to share something mind-boggling – the second board, the one with the cut long narrow tear, could be tougher than the first! Sounds crazy, right? Yet, in the microscopic universe, it's true. In this exciting study, we embark on a journey into the captivating world of 2D materials, using hexagonal boron nitride (hBN) as our prime example. Our mission? To unravel the profound impact of line defects on the overall mechanical properties of these extraordinary materials. Get ready for an exhilarating adventure where the tiniest details wield the power to make the most significant differences!

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Effective modulus of 3D-printable curvilinear fiber reinforced composites

3D printing has become incredibly popular recently, offering the flexibility to create customized shapes. Imagine merging this technology with fiber-reinforced (FR) composites, a special class of materials gaining attention in defense, aerospace, and energy applications. Picture this: using 3D printing to craft FR composites, we can generate a vast array of shapes and curves. Now, the exciting part – how do we figure out which shape gives us the best mechanical properties, like stiffness? Enter advanced FEM simulations and our innovative integration scheme! These simulations and scheme help us uncover the relationships between the curvature of the fiber in the composite and its overall effective modulus. In simpler terms, we're using cutting-edge technology to understand how the shape of these materials impacts their performance. It's like uncovering the secrets to building super-strong and efficient structures using the power of 3D printing!

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Anisotropy effects on crack path formation at atomistic-continuum scales

Crack paths in anisotropic materials like 3C-SiC aren’t just random—an intricate dance between crystallographic and structural anisotropies influences them. Picture this: cracks navigating through complex domains, influenced by atomic-level symmetry and larger structural features. Our research introduces a cutting-edge multiscale framework called 'Crystal-Symmetry Preserved Sub-Domains' (CSPS) to uncover these mysteries. This approach bridges atomistic and continuum mechanics to reveal how cracks bifurcate, deflect, or renucleate under stress. By capturing these behaviors, we’re unlocking new possibilities for designing stronger, more resilient materials tailored to extreme applications.

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The projects currently working on:

Utilizing Machine Learning for Predicting Crack Paths in Porous Media
Strain-effects on magnetism in multi-defect graphene
Atomistic deflection-penetration criteria at slanted interface
Variable stiffness boundary condition to measure effective toughness in heterogeneous media

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