I'm Dr. Shahadat Hussain — an Associate Research Scientist treating computation as a first-class laboratory instrument. I design algorithms that generate metamaterial geometries, simulate their mechanical response, and learn from manufacturing telemetry to make additive manufacturing predictable and defect-free.
Modern materials engineering lives at the intersection of geometry, physics, and data. My computational work spans the full loop: generating triply periodic minimal surface (TPMS) fields, discretizing them into printable meshes, simulating their mechanical response, and closing the loop with machine-learning models trained on real laser powder bed fusion (LPBF) process data.
This approach lets me do things that are impractical experimentally — sweep hundreds of lattice parameters overnight, predict where balling or spattering will occur before a single laser fires, and quantify microstructural features directly from SEM imagery instead of eyeballing them.
ASSOCIATE RESEARCH SCIENTIST
Additive Manufacturing & Metamaterials
Adjust parameters in real-time to simulate relative density and iso-surface threshold offsets for laser powder bed fusion (LPBF).
A scientific-computing stack purpose-built for computational materials design and manufacturing analytics.
The heart of the lattice generator — a gyroid is just three lines of trigonometry until you discretize it, threshold it, and hand it to a printer.
import numpy as np
def gyroid(x, y, z):
"""Implicit gyroid surface — F(x, y, z) = t."""
return (np.sin(x) * np.cos(y)
+ np.sin(y) * np.cos(z)
+ np.sin(z) * np.cos(x))
def sample_field(level_fn, n=160, threshold=0.35):
"""Sample the level-set field on a regular grid.
The resulting scalar field feeds marching-cubes
to produce a watertight, LPBF-ready mesh.
"""
grid = np.linspace(0, 2 * np.pi, n)
x, y, z = np.meshgrid(grid, grid, grid)
return (level_fn(x, y, z) - threshold).astype(np.float32)
# One unit cell, ready for laser powder bed fusion
field = sample_field(gyroid, n=160, threshold=0.35)
print(f"field sampled: {field.shape} · ready for meshing")
Every study below is supported by reproducible analysis code — from raw process logs to final figures.
Investigated the effect of carbon fiber reinforced composite and annealing on mechanical properties of TPMS gyroid cubes.
Built the image-analysis and statistical pipeline used to quantify Ni evaporation, oxide- and Ti-rich phase formation across Primitive and Gyroid topologies — linking geometry and laser parameters to solid-phase distribution.
Designed the experimental-parameter sweep and defect-classification workflow that isolated the effects of relative density and scan strategy on balling and intergranular cracking in thin Schwarz TPMS layers.
Developed the SEM feature-mapping workflow used to document ten distinct microstructural regimes across lattice struts, providing the quantitative basis for solidification-rate hypotheses in architected AM parts.
Open to R&D and advanced-manufacturing roles in aerospace, defense, and high-performance engineering — especially where computation meets the melt pool.