PartStrength calculates the static and dynamic strength in a cross section according
the method developed in the text book **Maschinenelemente Band 1 Niemann-Winter-Höhn 4. Edition 2005**. This method involves
the determination of a lot of influence factors making the calculation work quite extensive. This application is intended to automate the labourious
calculation work.

PartStrength is multi-lingual application for Microsoft Windows. The user can select the language for the user interface and output out of:

- Dutch
- English

At the start of a new calculation project a dialog box is being opened for input of some data for the identification of the calculation project. This dialog box contains edit controls for input of: order, project, subproject, item, part ID , calculated by, organization, and date of calculation. A text box is also provided to hold a short note about the calculation project.

The strength properties in the part are to be derived from material properties R_{m}
and R_{e} of a standard test specimen with diameter d = 7.5 mm for a given material
by determination of a number of influence factors.

- Determination of ultimate and yield strength in part by calculation of the technologic size and anisotropic influence factors
- Determination of shear strength and shear yield strength from the ultimate and yield strength in part
- Correct compressive strength and yield for cast iron materials
- Correct for the influence of higher temperatures > 100 °C
- Influence of stress concentration by determination of form factors
- Influence of plastic support and plastic notcheffect
- Influence of non linearity for lamellar cast iron GJL
- Determination of tensile, bending, shear and torsion strength and corresponding yield in part
- Calculation of safety factors for a given static load
- Calculation of safety factors for comparison stress with mixed failure criterion

- Determination of alternating tensile/compressive and shear strength for test specimen size using ratio's
- Determination of alternating tensile/compressive and shear strength in part by calculation of the technologic size and anisotropic influence factors
- Correct for the influence of higher temperatures > 100 °C
- Influence of stress concentration by determination of form α-factors
- Influence of plastic support by part form, geometric size and load case, determination of support factors
- Determination of alternating tensile, bending and torsional strength for unnotched part
- Influence of stress concentration by determination of elastic notch effect β-factors
- Influence of surface roughness in notch radius
- Influence of skin support by hardened layer or shot-peening
- Determination of alternating tensile, bending, shear and torsion strength in part
- Calculation of mean stress sensitivity coefficient
- Calculation of allowed bending and torsional stress amplitudes in part for given mean stress
- Calculation of safety factors for a given mean and dynamic stress amplitudes
- Calculation of safety factors for comparison stress with mixed failure criterion

Above summary suggest that there are a lot of calculations to do. See further for calculation results

See next page for selection of material and input part size.

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