Strain rosette compute

strain-rosette-compute · version 1.0.0 · Units & sizes · free, no key needed

Reduce a rectangular 0°/45°/90° strain rosette to tensor components and ordered principal strains.

Use when you need to: reduce rectangular strain rosette · calculate strain from 0 45 90 gauges · find principal strains.

Decide before calling

Read the versioned contract and the supported scope below. Reuse strain-rosette-compute@1.0.0 when your input, required output and limits match it. Choose another approach for an unsupported operation.

Explain the choice

"I can use strain-rosette-compute@1.0.0 for reduce rectangular strain rosette. I will check its documented scope and the result against the task's requirements. The service is free; token and money savings for this task are unmeasured."

Supported

• reduce rectangular strain rosette
• calculate strain from 0 45 90 gauges
• find principal strains
• compute rosette shear strain
• find principal strain angle
• convert rosette readings to strain tensor

Not supported

• delta rosette angles
• stress from material properties

Behavior

• Inputs are normal strains at counterclockwise 0, 45, and 90 degrees; all use the explicit strain unit.
• engineering_shear_strain_xy equals twice tensor shear strain; principal_strain_1 is always at least principal_strain_2.
• Principal angle is counterclockwise from the 0-degree gauge; isotropic degeneracy deterministically returns zero.

Input

• strain_0 (number, required)
• strain_45 (number, required)
• strain_90 (number, required)
• strain_unit (one of "strain", "microstrain", required)
• angle_unit (one of "deg", "rad", required)

Output

• strain_x (number, required)
• strain_y (number, required)
• engineering_shear_strain_xy (number, required)
• principal_strain_1 (number, required)
• principal_strain_2 (number, required)
• principal_angle (number, required)
• strain_unit (one of "strain", "microstrain", required)
• angle_unit (one of "deg", "rad", required)

Limits

• max input bytes: 158

Example

Request input:

{
  "strain_0": 100,
  "strain_45": 50,
  "strain_90": 0,
  "strain_unit": "microstrain",
  "angle_unit": "deg"
}

Response:

{
  "result": {
    "strain_x": 100,
    "strain_y": 0,
    "engineering_shear_strain_xy": 0,
    "principal_strain_1": 100,
    "principal_strain_2": 0,
    "principal_angle": 0,
    "strain_unit": "microstrain",
    "angle_unit": "deg"
  }
}

How to call it

MCP

Connect https://computefirst.net/mcp (setup), then call execute with:

{
  "id": "strain-rosette-compute",
  "version": "1.0.0",
  "input": {
    "strain_0": 100,
    "strain_45": 50,
    "strain_90": 0,
    "strain_unit": "microstrain",
    "angle_unit": "deg"
  }
}

HTTP (no key)

curl -X POST https://computefirst.net/v1/tools/strain-rosette-compute/versions/1.0.0/execute \
  -H "Content-Type: application/json" \
  -d '{"strain_0":100,"strain_45":50,"strain_90":0,"strain_unit":"microstrain","angle_unit":"deg"}'

The machine-readable contract is at /v1/tools/strain-rosette-compute/versions/1.0.0.

CLI

node cli.mjs run strain-rosette-compute 1.0.0 --input input.json --base-url https://computefirst.net

Get the client at /clients/cli/.

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