Consulting Service

Metal Forming FEM Consulting

Springback that will not converge. A yield function calibrated against the wrong curve. Edge cracking a continuum model never predicted. Consulting on ABAQUS-based forming simulation, from someone who also works at the grain scale when that is what the failure actually needs.

Who this is for

The process engineer whose die compensation loop has run for months without converging. The team calibrating a yield function for a new alloy with no historical data. The group whose AHSS part keeps cracking at the edge despite a forming simulation that predicted no failure at all.

Forming simulation is powerful and routinely misused — not because the solver is wrong, but because the constitutive model is asked to predict physics it was never calibrated against.

What the consulting covers

Process simulation setup Deep drawing, stamping, forging, extrusion, and hydroforming models in ABAQUS, built around your actual tooling and process parameters.
Anisotropic yield calibration Hill, Barlat family (incl. Yld2004-18p), and custom yield functions calibrated against your material test data, not defaults.
Springback & unloading physics Kinematic hardening calibration that captures the Bauschinger effect and through-thickness gradients — the physics that actually controls springback.
AHSS & edge-cracking analysis Crystal plasticity brought in where continuum models cannot resolve the microstructural damage mechanism.
Thermo-mechanical coupling Hot forming and forging processes where temperature history controls flow stress and final properties.
Die design optimization Blank holder force, draw bead geometry, and lubrication strategy explored virtually before tooling is cut.

Why me

Elsevierco-edited book: Mechanics of New-Generation Metals and Alloys
39+publications spanning forming and deformation
2scales covered: macro FEM and grain-level CPFEM
10+ yrsABAQUS-based forming and thermo-mechanical work

My research spans both sides of the forming problem: large-scale ABAQUS simulation and the crystal plasticity work that explains why continuum models fail at the microstructural scale. That combination is why I can tell a client honestly when their springback issue needs a better calibration, not a finer mesh — and when it genuinely needs a grain-level model.

Dr. Qayyum is a true brainstorming guru with an incredible depth of experience. He helped me develop a sophisticated analytical approach and a compelling visualization for a complex project that ultimately received high praise from my management team. — Abdelrahman Baraka, MSc Steel Technology, TU Bergakademie Freiberg, Germany

How it works

  1. 15-minute call. Describe the part, the failure mode or the target, and what data you have. I tell you whether this is a calibration fix, a modeling-scale problem, or something else.
  2. Scoped engagement. A calibration review runs 1–2 weeks; a full process simulation and die-design campaign typically 4–10 weeks. Agreed in writing first.
  3. Delivery. Calibrated model, input files, and a written explanation of what drives your specific failure mode or optimization target.

Common questions

Our springback keeps drifting after every die adjustment. Can you help?

Usually, yes — this is almost always a calibration issue, specifically missing kinematic hardening physics from the unloading curve. A model review can often identify the gap within the first session.

Do we need crystal plasticity for our forming problem?

Only if the failure is microstructural — edge cracking, texture-sensitive formability, or an uncharacterised new alloy. For thinning, wrinkling, and standard forming-limit questions, a well-calibrated macroscopic model is the right, economical tool. I will tell you which on the first call.

Can you calibrate a yield function for a brand-new alloy with no test history?

Yes — either from a targeted mechanical test campaign, or via crystal plasticity virtual testing that generates the yield surface computationally when physical test time is limited.

What software do you deliver in?

ABAQUS input decks and user subroutines where needed, DAMASK for any crystal plasticity component, and documentation your team can maintain after the engagement ends.

Can you review a model we already built rather than starting fresh?

Yes — a model and calibration review is the most common first engagement, and often the cheapest way to find out whether the problem is fixable in your existing setup.

Start With 15 Minutes

Book a call and describe your forming problem. I will tell you honestly whether it is a calibration fix, a modeling-scale issue, or something simulation cannot solve at all.

Book a 15-Minute Call Send a Message

Related reading: What sheet metal forming simulation gets right — and where it breaks · Crystal plasticity simulation consulting