Glass-based articles having crack resistant stress profiles

A wearable consumer electronic device comprising:

• a housing;
• electrical components provided at least partially internal to the housing, the electrical components including at least a controller, a memory, and a display, the display being provided at or adjacent to a front surface of the housing;
• and
• a cover disposed at or over the front surface of the housing and over the display, wherein the cover comprises a glass-based article having a thickness in a range of from greater than or equal to 0.2 mm to less than or equal to 4.0 mm;
• a first compressive stress layer extending from a first surface of the glass-based article to a first depth of compression (DOC1) that is in a range of from greater than or equal to 5% to less than or equal to 20% of the thickness;
• a second compressive stress layer extending from a second surface of the glass-based article to a second depth of compression (DOC2) that is in a range of from greater than or equal to 5% to less than or equal to 20% of the thickness, wherein the second surface is opposite the first surface;
• and a central region extending from the first depth of compression (DOC1) to the second depth of compression (DOC2) and having a maximum tensile stress in a range of from greater than or equal to 0.5 MPa to less than or equal to 20 MPa, wherein there is a compressive stress at at least one of the first surface and the second surface of greater than or equal to 300 MPa, the glass-based article comprises chemically strengthened lithium aluminosilicate glass, wherein the wearable consumer electronic device is configured to be worn on an individual, the wearable consumer electronic device selected from the group consisting of as a watch, a media player, a wallet and a bracelet.

A method of making a glass-based article, comprising:

• strengthening a glass-based substrate to provide the glass-based article having a thickness in a range of from greater than or equal to 0.2 mm to less than or equal to 2.0 mm, a first compressive stress layer extending from a first surface of the glass-based article to a first depth of compression (DOC1) that is in a range of from greater than or equal to 5% to less than or equal to 20% of the thickness, a second compressive stress layer extending from a second surface of the glass-based article to a second depth of compression (DOC2) that is in a range of from greater than or equal to 5% to less than or equal to 20% of the thickness, wherein the second surface is opposite the first surface;
• and
• continuing the strengthening until a central region of the glass-based article extending from the first depth of compression (DOC1) to the second depth of compression (DOC2) has a tensile stress in a range of from greater than or equal to 0.5 MPa to less than or equal to 20 MPa,
• wherein there is a compressive stress at at least one of the first surface and the second surface of greater than or equal to 300 MPa.